MItt raises $4.6 million in 24 hours after Obamacare ruling

WASHINGTON--Mitt Romney's campaign said the Supreme Court decision to uphold the Obama health care law--which Romney has vowed to repeal and replace results in $4.6 million raised in 24 hours from more than 47,000 donations.

In another measurement, Facebook participation, Romney soared in the last day, according to the campaign.